[Randy p]

Never run the RS or RS Pro without a cap, ever.

The caps do get hot. If the cap is hot that means there's a lo of ripple current in your setup. Weaker packs or simply a hard running setup. A 2nd cap of the same time will bring temps down.

That sounds is very odd. The first thing I'd try is another motor right out of the gate. Make sure you have the A to A , B to B, and C to C set correctly.